questions Flashcards
1
Q
hesitation to switch to digital
A
cost and image quality
2
Q
showed two lines place on tooth
A
multi-line ruler
3
Q
- What did Wilhelm Von Roetengen do?
A
discovered x-radiation
4
Q
- Name 2 positives of tungsten as a target metal
A
high melting point
high atomic number
5
Q
- Who was the first person to utilize radiographs for teeth?
A
otto walkoff
(Dr. kelly first in US)
6
Q
- Who was the person who made the x-ray portable?
A
coolidge
7
Q
- Question that gave multiple options and asked about thermionic emission.
A
electrons boil off filament
8
Q
- Does the x-ray have high or low LET compared to alpha waves?
A
a. Alpha waves are an example of particulate radiation (contain mass) – things with mass have a high LET. X-rays are low LET bc no mass, travel at the speed of light, and have no charge!!
9
Q
- In comparison to CMOS with radiation, CCD has
A
less radiation
10
Q
atomic number measure?
A
protons
11
Q
list two sources of ionizing radiation
A
xray and gamma
12
Q
higher spatial resolution is found in
A
film- since better quality image
13
Q
- Smaller focal spot ______ and bigger focal spot ______
A
better resolution
worse resolution
14
Q
benefits of CMOS
A
digital manupulation
15
Q
what does PSP use
A
laser lights
